2006
DOI: 10.1175/waf956.1
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Abstract: This study describes, illustrates, and validates hail detection by a simplified version of the National Severe Storms Laboratory’s fuzzy logic polarimetric hydrometeor classification algorithm (HCA). The HCA uses four radar variables: reflectivity, differential reflectivity, cross-correlation coefficient, and “reflectivity texture” to classify echoes as rain mixed with hail, ground clutter–anomalous propagation, biological scatterers (insects, birds, and bats), big drops, light rain, moderate rain, and heavy r… Show more

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Cited by 70 publications
(38 citation statements)
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“…While the approaches work reasonably well for warm-season deep moist convection, their evaluations suffer from a lack of validating observations. Heinselman and Ryzhkov (2006) reported on the validation of hail detection by the NWS operational HCA during the Joint Polarimetric…”
Section: Motivationmentioning
confidence: 99%
“…While the approaches work reasonably well for warm-season deep moist convection, their evaluations suffer from a lack of validating observations. Heinselman and Ryzhkov (2006) reported on the validation of hail detection by the NWS operational HCA during the Joint Polarimetric…”
Section: Motivationmentioning
confidence: 99%
“…Polarimetric algorithms for hydrometeor classification, which utilize a combination of Z, Z DR , K DP , and r hv , demonstrate good skill for hail detection at S band as limited validation studies show (e.g., Heinselman and Ryzhkov 2006;Depue et al 2007). Polarimetric hail detection algorithms originally developed for S band need significant modification for applications at C band primarily because Z DR of small-and medium-size melting hail at C band is greater than at S band (Ryzhkov et al 2007;Tabary et al 2010;Anderson et al 2011).…”
Section: Introductionmentioning
confidence: 99%
“…Notable exceptions include the works of Heinselman and Ryzhkov (2006) and Depue et al (2007) at S band, and Boodoo et al (2009) and Tabary et al (2009a, 2010 at C band. To our knowledge, the study of Depue et al (2007) is the only one where the correlation of the maximal size of ground-truth hail observations to polarimetric signatures has been examined systematically.…”
Section: Introductionmentioning
confidence: 99%
“…Dual-polarized radars have many advantages over their single-polarized counterparts, particularly an enhanced ability to distinguish between different types, sizes, and shapes of hydrometeors within precipitating systems (e.g., Balakrishnan and Zrni c 1990;Herzegh and Jameson 1992;Ryzhkov and Zrni c 1998;Zrni c and Ryzhkov 1999;Straka et al 2000;Bringi and Chandrasekar 2001;Zrni c et al 2001;Ryzhkov et al 2005a;Tessendorf et al 2005;Heinselman and Ryzhkov 2006;Park et al 2009), and to distinguish between hydrometeors and other nonmeteorological scatterers, such as insects, birds, dust, and debris (e.g., Ryzhkov et al 2005b;Gourley et al 2007). Several polarimetric variables can be derived from the information provided by the horizontally and vertically polarized beams and their differential interactions with hydrometeors.…”
Section: Introductionmentioning
confidence: 99%